USER MANUAL CONDUCTIVITY & TDS METERS WITH CAL

USER MANUAL CONDUCTIVITY & TDS METERS WITH CAL
SPECIFICATIONS:
USER MANUAL
RANGE
SMS315
0.00 to 9.99 mS/cm
SMS415
0 to 1990 mg/L (ppm)
RESOLUTION
SMS315
0.01 mS/cm
SMS415
10 mg/L (ppm)
ACCURACY (@25°C)
±2% Full Scale
CONVERSION FACTOR
approx. 0.7 (SMS415 only)
TEMPERATURE
Automatic,
COMPENSATION
from 5 to 50°C with β=2%/°C
ENVIRONMENT
0 to 50°C; 95% RH max.
PROBE
SMS315
MA815/2 (included)
SMS415
MA816/2 (included)
POWER SUPPLY
external, 12VDC power adapter (included)
DIMENSIONS
85 x 104 x 39 mm
WEIGHT
130 g (meter only)
CONDUCTIVITY & TDS METERS
WITH CAL-TEST
MODELS:
OPTIONAL ACCESSORIES:
M10031B
M10442B
M100020B
M100040B
MA815/2 (*)
MA816/2 (*)
1413 µS/cm calibration solution, 20mL sachet (25 pcs)
1500 ppm cal. solution, 20mL sachet (25 pcs)
Cal-Test solution for SMS315, 20mL sachet (25 pcs)
Cal-Test solution for SMS415, 20mL sachet (25 pcs)
Conductivity probe for SMS315, with 2m cable
Conductivity probe for SMS415, with 2m cable
(*) To be replaced by technical personnel only.
WARRANTY:
We reserve the right to modify the design, construction and appearance of our
products without advance notice.
11/02
Note:
ISMIL315R1
These instruments are warranted from all defects in materials and manufacturing for a period of two years from the date of purchase. The probes are
warranted for a period of 6 months.
If during this period, the repair or replacement of parts is required, where
the damage is not due to negligence or erroneous operation by the user,
please return the parts to either dealer or our office and the repair will be
effected free of charge.
SMS315 & SMS415
OPERATION:
• Connect the supplied 12VDC
power adapter to the meter
and to the mains line.
• Immerse the tip (4 cm) of the
conductivity probe into the
sample.
• Wait for thermal equilibrium to
be reached and the meter will
start continuous monitoring.
CALIBRATION TEST:
These meters are provided with a check system, which
allows to verify the calibration status in a fast and easy way.
It is recommended to perform the below operations once a
month.
• Rinse thoroughly the probe with water.
• Immerse the probe in the suitable "Cal-Test" solution,
M100020 for SMS315
M100040 for SMS415.
• Wait for one minute and then
push the "Cal-Test" button on
the meter front.
• If the GREEN LED lights up,
the meter is calibrated.
• If the RED LED lights up, clean the probe, immerse it in
the "Cal-Test" solution and push again the button.
• If the GREEN LED lights up,
the meter does not need calibration.
• If the red LED lights up, calibrate the meter.
CALIBRATION PROCEDURE:
• Clean the probe with alcohol and let it dry (if a more thorough cleaning is required, brush the metal pins with fine
sandpaper and then rinse with water).
• Open a sachet of suitable conductivity calibration solution
and immerse the probe, making sure the metal pins are
completely submerged.
Use M10031 (1413 µS/cm) for SMS315 and M10442 (1500
ppm) for SMS415.
These calibration solutions are recommended for applications in agriculture and hydroponics.
• Wait until the reading stabilize for temperature variations,
and then adjust the CAL trimmer on the meter side with the
supplied screwdriver until the display shows:
"1.41" mS/cm for SMS315 and "1500" ppm for SMS415.
• The calibration is now complete and the meter is ready to
take measurements.
If calibration can not be reached, the probe has to be replaced.
Contact your dealer for technical service.
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